Paper-cup-forming machine



April 5, 1921.

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Aplll 1927. C BARBIERI a PAPER CUP FORMING'MA'GHINE Filed March 15. 1924 15 Sheets-Sheet '7 April 5 1927.

cy BARBIERI PAPER CUP FORMING MACHINE Filed March 15. 1924 15 Sheets-Sheet 8 ve CLL- l l .jl/ f,

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p, 5' c. BARBIERI PAPER CUP FORMING MACHINE 13 Sheets-Sheet 9 Filed MarchA 15. 1924 VE' E Qfem/W @n April 5 w27 c BARBnv-:Rl 1,623329 PAPER CUP FomvlING lMACHINE Filed March 15, 1924 1s sheets-sheet 1o j? /70 171 zal 95? l 623,329 April 5 1927. C. BARBIERI a PAPER CUP FORMING MACHINE Filed March l5. 1924 l5 Sheets-Sheet 11 Ez Q f @f5 f5 E VEL-ling ware/Bark n' April 5, 1927.

c, BARBIERI v PAPER CUP FORMING MACHINE Filed March l5. 1924 13 Sheets-Sheet 12 l 623,329 prll 5 1927. C. BARBIER! PAPER CUP FORMING MACHINE v Filed March l5, 1924 13 Sheets-Sheet 13 Inv m Patented Apr. 5, 1927.

UNITED STATES PATENT OFFICE.

CESARE BARBIERI, 0F NEW YORK,v N. Y., ASSIGNOR TOTHE VORTEX MFG. CO.,.A

' CORPORATION 0F ILLINOIS.

rArna-cuP-FORMING MACHINE.

Application filed March 15, 1924. l Serial No. 699.424.

This invention relates to an improved autolnatic flat paper cup forming machine wherein shaped paper cup blanks are automatically fed singly from a magazine into the field of operation of a gripping mecha-A nism which acts to grip the,A blank and advance the same into `a position wherein glue is applied to two surfaces of the blank prior to the operation of a plurality ofconsecutively acting folding and creasing mechanisms which serve to fold the body portion of the blank over on itself, bend and press a glued flap against one side of the body portion, and then fold a tip portion so that a glued face thereof is pressed agalnst the other side of the body portion to form the completed flat paper cup which when formed is automatically delivered into a stacking magazine from beneath.

It is an object of this invention to prov1de a machine wherein blanks are automatically removed from a magazine, supplied with an adhesive and automatically folded to form flat cups which are delivered through the bottom of a.second magazine in which the flat cups are stacked and elevated ready for removal. through the top of the stacking magazine.

It is also an object`of the invention to provide a cup making machine wherein formed glued cups are advanced beneath a stackmg mechanism in which cups are stacked and the stack of cups elevated each time a cup is added lto the bottom of the stack.

It is furthermore an object of this invention to provide a machine wherein a cup blank is adapted to be automatically fed between adhesive applying mechanisms which operate at predetermined times to apply adhesive to opposite surfaces of the blank before the .blank'is folded to form a flat cup and is transferred 1`nto a stacking magazine and elevated therein.

It is an important object of this invention to provide a flat cup'forming machine of a simplified type wherein a shaped blank is.

automatically removed from a magazine and delivered to a gripping device to be centered upon a table to have adhesive applied to portions thereof after which the blank is automatically advanced over the table and formed into a flat paper cup before beingdelivered into the lower end of a stacking The invention (in a preferred form) is illustrated on the drawings and hereinafter more fully described.

On the drawings:

Figure l is a top plan view of a ilat paper cup forming machine embodying the principles of this invention with 'parts broken away.

Figure 2 is a rear elevation taken on line 2 2 of Figure 1.

Figure 3 is a `front elevation of the machine taken on line 3 3 of Figure 1.

Figure 4 is a fragmentary plan view with parts removed, taken on line 4--4 of Figure 3.

Figure 5 is an enlarged transverse detailed section taken on line 5 5 of Figure 1 with parts in elevation.

Figure 6 is a detail section taken on line 6 6 of'Figure 5.

Figure 7 is a detail sectional view taken on line 7 7 of Figure 1.

Figure 8 is a fragmentary detail plan vienr taken on line 8 8 of Figure 3 with parts omitted.

Figure 9 is a detail section taken on line tail section taken on line 12 12 of Figure 1. l

Figure 13 is a top plan view of the parts illustrated in Figure 12.

Figure 14 is an enlarged detailed section taken on line 14- 14 of Figure 4.

Figure 15 is a fragmentary enlarged end elevation of the discharge end of the vmachine.

Figure 16 is an enlarged fragmentary detail view taken on line 16 16 of Figure 1.

Figure`17 is a fragmentary detail section taken on line 17-17 of Figure 15 with parts omitted and with parts shown in elevation.

Figure 18 is a detail section through the I glue pot mechanism taken on line 18e-18 of Figure 4. r

v,inner Iend-o a lcollar 15.

Figure 19 is an enlarged fragmentary detail section taken on line 19-19 of Figure 1. Figure .20 is an enlarged detail view taken on line 20--20 of Figure -15 with parts omitv lFigure 21 is a detail elevation 'taken on line 21-.v21 of Figure -13 with parts omitted.' 1 Fi .l of Figure 21 with e 22 isa section taken on line 22-22 arts in elevation'.

Figure23 is a lragmentar 'view of the table taken on line 23-23 of igure 4 with a f cup blank in `position and illustratin the preliminaryl folding operations inotted nes. j

Figure' 24 is a fragmentary plan view of the table showing a cup .blank in position ready for the first vfoldingl operation.

' .Figure 25 illustrates t e cup blank in, an advanced lposition after the glue has been 20 applied and with the lateral margin under 30 to cause the ti to be folde lover and glued y vof the cup.'

against the bo View of thecompleted Figure 29 is a plan flat pa er cup'.

f Ass own on the drawings.:

chine frame having journalledv thereon in suitable bearings a main driving shaft 2 one end of which is connected to be driven from an suitable source of power. Fixed on the 4.0 I drive shaft2 is a sprocketear around which adrive chain 3 is trame The chain 3 is also trained over a sprocket wheel 4 mounted on the hub sleeve 5 of a clutch housing 6.

' l. The clutch housing 6 is connected to be ro'- 45 ltated by the sproc e t wheel 4 by meansof a lpin 7 Figure The housing sleeve 5 is rotatab e `on .a s eeve 8 which 1s free on a shaft 9 journalled in frame bearings 10 and- 11. Keyed on the sleeve 8 is a yoke 12 to *50- which a pair of arms 13 are pivoted. The f arms-13 are directed on opposite sides of the shaft9 and carry ins 1 4 which project inwardly toward the s eeve-Sand are pos1 tioned. between the yoke 12 and the beveled The collar 15 is freemn a ange'd retaining sleeve 16 secured von the sha-ft' 9 to the outside of the sleeve 8 and abutting thesamc. The-clutch arms 13 'have the outer ends. thereof connected to' 5u brake bends 17 'positioned lwithin the clutch khousing 6.

Integrally' formed `'on the inner end of vthe.- leeve 8v is a disk 18 having a radial slot.19" in the inner 'surface thereof. The 5- rounded end of a latch pin '20 projectsinto The reference numeral 1 indicates a ma.

the slot 19. The `latch pin is slidable in the hub of a hand wheel 21, which is.keyed\ on the shaft 9 adjacent the disk .18. Anpin` 22 fixed in the hub of the hand wheel-2 1- projects into an arc shaped slot in the disk 18. A coiled spring 23 is engaged around the hand wheel hub between the .hand Wheel sion 24 which abats against the endof the vweb and the disk 18. The hub of the hand wheel is provided with a reduced hub exten- 7 bearing 10 Figure 5). Loosely engaged on.l

the hand w eelhub extension 24 isa ring 25 which is-integrally formed on the upper end of the longearm 26 of a throw out bell crank pivoted on a stud 27 supported on the machine frame. has a'short arm -28 in the end'of which a screw 29 is adjustably engaged to co-act with the short arm 30 of a power throw in or starting bell crank which is secured on' a starting shaft 31 supported in suitable bearings on the machine frame 1.y A handle or lever 32 is connected 1to operateA the starting shaft 31., The starting bell crank has a lona arm 33 the u per end of which is U-shape or forked an carries pins 34 which project into a groove 35 provided inthe shiftable l collar 15 (Figure 16).

Referring now to the blank' feed magazine and feeding mechanism a gear 36 is fixed on The throw `out bell crank the clutch carrying shaft 9 and meshes with a large gear 37 fixed'on a shaft 38 journalled in bearings formed' on the machine frame.

Fixed on the inner end of the shaft 38 is a beveled gear 39 which is vin mesh with a beveled gear 40. Secured on the shaft 38 adjacent the beveled gear 39 is a gear 41' which meshes with a gear 42.v The gear 42 is mounted on a feed shaft 43 which yis jour? nalled in bearings provided in a. magazine base section 44 supported vou the frame V1. A^blank feed Vreel 45is mounted on the shaft 43 within the base section 44. Secured upon the magazine base 4section 44 is a` sectorsha ed cup blank holder 46 having a blank out et slot 47 therein (Figure 7). Blank guide posts-48 are mounted upon the holder f lthe same forwardly out'of the magazine only Aata predetermined time.

Mounted onthe front 'endv` of the shari-l 38 isa wheel 'or disk 53 having an eccentric .pin 54 thereon onwhich one endof an eccentric rod or bar 55 is engaged. .The ec centric bar 55 is pivotallyv supported near its other end on a pm 56 carried on the lower end of a-'link 57 -which is vfixed on a pin 58 carried by a slidable block 59. The block 59 is slidable in a slot 60 provided in the front of the machine frame 1 (Figure 3). Integrally formed at an angle on the bar is an extension arm 61. The bar 55 and the arm 61 form a bell crank member. Pivot-ally connected to the end of the arm 61 is one end of a connecting rod 62 the other end being pivotally connected to the upper end of the outer arm of-a double arm lever 63. The lower end of the lever 63 is pivoted on a bracket 64 secured on the machine frame 1.

Secured to the slidable block 59 is a horizontal bar 65 which is slidable beneath a guide or retaining )late 66 secured to the machine frame 1. ecured to the slidable bar 65 is a bracket G7 on which a projecting arm 68 is supported. A blank advancing plate 69 is fixed'beneath the projecting arm 68 and extends into the path of the advancing cup blanks. Fixed on the top of the arin 68 is a carriage 70 having an. upper gripper arm 71 integrally formed thereonnvhich carries a rocker pad or upper gripper jaw 72. Secured to the carriage 7 0 is a plate 73 deflected at 74. A cup blank centering flange 75 is formed on one end of the carriage plate 73. h

Fixed on the inner end of the pin 58 is the upper end of a link 76 the lower end of which is 'connected to one end of a connecting bar 77 (Figure 9). The other end of the connecting bar 77 is connected to one arm of a bell crank 78 which is pivoted on the bracket 67. Fulcrumed on the other arm of the bell crank 78 is a lower gripper bar 79 oneend of which is pivoted on the bracket 67. The other end ofthe lower gripper bar 79 has a gripping anvil or lower jaw 80 supported thereon for co-action with the upper gripper jaw 72.

When a cup blank 90 (Figure 24) is fed o ut of the bottom of the cup blank holding magazine through the slot 47 the blank 90 is ,delivered onto a stationary table 81 .having a raised portion 82 provided with a curved stop edge 83. A stationary table section 84 is rovided in the plane of the table 81 and 1s separated therefrom by a Adiagonal opening or.slot 85 in which a pair of upper and lower blank folding bars. 86 and' 87 are adapted to move in a vertical plane. The bars 813 and 87 are separated by a slot 88 and at one end rest on one another and are supported upon the top of a vertically slidable bracket 89 mounted in guides on the machine frame 1.

The disk 53 when rotating actuates the rod 55 which acts to slide the block 59 toward the cup blank magazine thereby causing the link or crank 76 to operate the bar 77 and the bellfcrank 78, to move the lower .gripping jaw-80 into open position to permit the advance end of the delivered cu blank 90 to engage between the gripper Jaws 72 and 80. With the continued operation of the disk 53Itl1e lower gripper jaw 80 is closed to clainp the cup over the table 81-8-1 into the position illustrated in Figure 2l over the top of the upper folding bar 86 and with one portion of thc cup blank 90 over an aperture 91 in the table section 81 (Figure 4). The table section 81 blank 90' which is carried has a corner thereof positioned above one end of a glue tank or trough 92 which is mounted transversely of the machine frame. The glue trough 92 has a pair of spaced hearing lugs 93 formed on the outer end thereof. Rotat-able in the bearing lugs 93 is a short shaft 91 on which a bracket or elbow 95 is fixed between the lugs 93. l Attached to the elbow 95 within the trough 92 is a lever or arm 96 having a glue applying pin 97 thereon. The shaft 94. has a head 98 formed on one end thereof to which one end of a coiled spring 99 is secured. The spring 99 is coiled around the shaft 94 and has thc other end connected to the bearing shank 100 of a crank 101. The crank 101 has a rocker head 102 (Figure 18) the curved surface of which rests upon the. upper end of a vertically slidable offset bar 103 which is slidable in a guide groove in a -middle bearing arm or bracket 101 three of which are secured on the rear sideI of the machine frame 1. A roller 105 is mounted on the slidable bar 10S-'i and co-acts with a cam 106 which is fixed on a main cam shaft 107 journalled in the bearing arms 104. A dab or spot of glue 108 is adapted to be applied to the under surface of the cup blank 90 by the pin 97 which is; projected upwardly through the table aperture 91 into contact with the blank.

With the gripper jaws 72 and 80 in their advance position read)7 to grip the next cup blank the blank feed plate 69 is in its advance position over the cup blank 90 as illustrated in Figure 24 with one edge of the plate 69 above the edge of the table 81 which forms one side of the opening 85.' Just previous to the time that the gripper carriage starts to move away from the cap blank magazine the blank folding hars 86 and 87 are raised thereby bending up the blank position 109 into the position shown in Figure 25. The other portion 110 of the cup blank is heldV in place by the feed plate 69. Pivotally attached to the slidable' bracket. S9 is the upper end of a link 111'(Fignre 1l) the lower end of which is pivoted to a curved arm 112. One end of the arm 112 is pivoted on the frame 1, while the other end carries ajroller 113 disposed in a cam groove 114 to vhead 118 of a creasing lever 119. A crease 120 (Figure 25.) is thus made in the advancing cupblank thereby forming a flap section- 121 which is slightly bent upwardly as the blank is advanced to cause the flap 121 to ride over an inclined surface of a shoe 122, (Figure 4) on the table section 84.

As the partially folded cup blank is advanced by the feed plate 69. from the position illustrated in Figure 24 into the position shown in Figure 25 a second glue applying mechanism acts automaticallyfto apply a strip of lue on the upper surface of the cup blank ap 121 being formed.. The second glue applying mechanism comprises a glue tank or trough 123 supported longitudinally of the machine upon a bracket or post 124 slidable in the machine frame 1. The glue tank 123 has a glue outlet aperture 125 in the bottom theleof. Rotatably supported on the bottom of the glue tank 123 below the aperture 125 is a glue applying disk or wheel 126 supported on a shaft 127 on the other end of... which a small gear 01 pinion 128 is fixed. The pinion 128 meshes with a r larger gear 129 rotatably mounted on the side of the glue tank 123. Meshing with the large gear 129 4is 'a pinion 130 mounted on one end of a shaft 131 `journalled transversely of an extension 132 on the glue tank. A pinion 133 is mounted on the other end of the shaft 131 andisin mesh with a gear 134 mounted on a shaft 135 supported in a stationary bearing 136. A gear 137 is fixed on the other end of the shaft 135 and meshes with a gear 138 on the rear end of a shaft 139 journalled in a bearing 140 'on the machine f1-aine. A cup feed cam y141 is fixed on the other end of the shaft 139. Thev gear 138 also meshes with a gear 142 rotatable on 4the machine frame and receiving a drive from a gear 143. The (rear 143 is fixed on a rotatable shaft 144 on the 'front end of which@ a lower cup feed roll 145 is'mounted. The gear 143 meshes with and receives a drive from a large gear 146 which is mounted on a shaft 147 journalled in a bearing in the machine frame, A bevel gear 148 is fixed on the shaft 147 to the outside of the largev lfixed on -the rear end of the shaft 151 and meshes withthe gear 143 to receive a drivetherefrom.

Referring now to Figurev 10 we have to `consider the mechanism for raising and lowering the glue tank 123. Pivoted to a web or rib 154 on the slidable post 124 isthe upper end of a link 155 the lower end of which is pivotally connected to a curved arm 156. l

One end of the curved arm 1561s pivoted to the machine frame 1 while the other end carries a roller 157 disposed in a cam groove 1,58 to co-act with a cam 159 formed within the cam disk 116. The lue tank 123. is vertically adjustable on tie reciprocatmg bar 124 and is provided -with an adjusting wheel or disk 126 and after the flap has been partially bent upwardly by passing over the inclined surface of the shoe 122 and over an inclined plate 161 (Figure 4). Fixedon the cam shaft 107 is a cam 162 with which a loller 163 co-acts. The roller 163 is carried on the short arm of a spring-controlled bell crank 164 whichis pivoted on the maf1 chine frame 1 (Figure 14) and has a bearing block 165 in the yoked end 166 of the long arm thereof. A pin 167 is journalled' in the bearing block 165 and is connected to a carriagc'168 which is slidable on a'support.

169 on the machine frame. Secured to the slidable carriage 168 is a flap folding plate 170 which is adapted to slide against the upturned flap 121 and fold the flap over against the body of the cup as illustrated in Figure 26.

The partially folded and formed cup is now in the posit-ion illustrated in Figure-27 partially positioned beneath a stationary ren taining plate 171 located above the tablesection 84 as illustrated in Figure 1.' The tip 172 of the cup projects over the inclinedv edge 173 of the tablesection 84 ready yto beA d I bent over at right angles to the body of the by a tip bending mechanism. Mounted cup on theshaft 147 to the inside of the gear 146 is a cam 173 with which a roller 174 co-acts.. The roller 174 is mounted on the short armof a bell crank 175 which is pivotally supported on a bracket 176 formed on the ma chine frame. Pivotally connectedto the end of the long arm of the bell crank 175 .is'the lower. end of a rod or post 177 which prof jects upwardly through a boring 178 having a spring 179 therein which iseoiled around `the'rod 177 and acts to hold the rod "in its through the opening in the block 184 and have a rectangular plate or cup clamping pad 187 secured to the lower ends thereof.

A coiled spring 188a seats in the block recess 185 (Figure 22) and against the pad 187 to hold the same resiliently against the cup tip bending shoe 183. lVhen the cam 173 reaches a certain position of rotation with respect to the roller 174 the spring 179 is permitted to act to slide the rod 177 downwardly thereby lowering the shoe 183 against the cup tip 172 (Figure 28) while the pad 187 seats against the top surface of the flat cup to hold the cup clamped between the table section 84 and the pad 187 while the shoe 182 bends the cup tip 172 downwardly at right angles as illustrated in dotted llines in Figure 21.

At this stage of the forming of the flat cup the feed cam 141 comes into contact with the cup and feeds the same forwardly over a pair of table rolls 188 and between the shoe 182 and the pad 187. As the cup is advanced by the feed caln 141 the cup feed plate 69 starts to move out of the cup toward the cup blank holding magazine.' The rolls 188 are rotatably supported beneath the table srcti'on 84 and project through openings in the table to afford a rolling support for the cup as it is advanced by the feed cam 141. lVith the advance of the cup from the position shown in Figure 28 to the dotted line position of Figure 21 the tip 172 is bent upwardly against the underside of the body ot' the cup so that the spot of glue 108 acts to glue the tip 172 to the body of the cup thereby completing the forming of the cup (Figure 29).

The formed cup is advanced by the feed cam 141 between the feed rollers 145 and 150 which press the glued parts together and at the same time advance the Cup over onto the table extension 189. Secured on the end ot' the machine frame 1 is a casting 190 having an extending arm 191 on which a carriage 192 is slidably engaged. A stop 193 is fixed on the end of the arm 191. The carriage 192 is provided with a vertical slot in which a plate 194 is slidably engaged. Integrally formed at. right angles to the upper edge of the slide plate 194 is a horizontal plate 195 which extends transversely beneath the table extension 189. Secured to the bracket plate 195 on opposite sides of the' table 'extension 189 are a pair of slide bars 196 recessed at 197 leaving upturned hooks or fingers 198. The hooks vare slightly curved to conform to the curvature of the l curved open cnd of the flat cup. A cup pocket is thus provided in the slidable cup removing bars 196 which slide between guides 199 and 200 fastened to the casting 190. Mounted upon the guides 199 and 200 is a cup holding and stacking magazine base section 201 having a substantially triangular shape as illustrated in Figure 1 and having guide slots 202 therein (Figure 19) through which the bars 196 are adapted to slide and be raised. Secured to the magazine base section 201 are a plurality of upright posts 203 supporting an upper magazine section 204 similar in shape to the lower section 201. Secured to the inner surface of the lower magazine base-section 201 and extending upwardly through the upper magazine section 204 are a plurality of flexible slats or cup retaining springs 205 over which a cup carton -is adapted to beengaged so thata stack of flat cups may be delivered upwardly into the carton. The slide plate 194 is provided 1 with a slot 20G (Figure 20) through which a stub shaft 207 projects. The shaft 207 is supported in a bearing 208 formed on the carria 192. Secured on the outer end of the stub shaft 207 is a bell crank 209 having a cam block 210 engaged on the inner side of the short arm of the bell crank. The bell crank block 210 projects into the slide plate slot 206 (Figure 20) to permit raising and lowering of the slide plate 194 with respect to the carriage 192. The long arm of the bell crank 209 is pivotally connected to one end of a link 211. The other end of the link 211 is pivoted to the'inner arm of the double arm lever 63. The bars 196 are first advanced toward the feed rolls 145 and 150 vto permit2 the formed flat cup to drop into the bar 'recesses 197 after which the bars are raised and then retracted to deliver the cup in the stacking magazine underneath the stack of cups already formed. The operation is as follows: l

A stack of cup blanks 90, sha ed as illustrated in Figure 24, are placed etween the magazine guide posts 48 with the lowermost blanks disposed within the magazine base 46. The lowermost blank 90 within the magazine rests upon the pin 51 and upon the spaced disks of the blank feed roll 45. The main drive shaft 2 is connected to be rotated from any suitable source of power and drives the clutch housing 6 by means of the chain 3 and the sprocket gear 4. The machine is provided with the starting handle 32 which when operated rocks the shaft 31 thereby causing the control bell crank 30-33 to operate. The long arm 33 of said bell crank (Figure 16) thus shifts the collar 15 f inwardly. The clutch arms 13 thus actuate the brake bands 17 thereby imparting a drive to the sleeve 8 and the hand wheel 21 through the pins 20'and 22 (Figure 5).

-The hand wheel 21'being keyed on the shaft 9 rotates the same and a drive is imparted to um gears 3e, 37, 41 and` 42. The feed m11 shaft 43 and the blank feed roll 45 are thus rotated. At a predeterminedtimein each revolution of the feed roll 45 the rubberv covered pads 52 are brought into contact with 'the lowermostl cup blank in the magazine. The pads 52 act to feed the lowermost cup blank out of the magazine base section 46 through the outlet slot 47. The supportingpin 51 (Figure 7) cuts through the edge of the cup blank as it is fed for- .f wardly out of the magazine onto`the raised .table portion -82. As the `lowermost cup blank is delivered from the magazine the remaining cup blanks drop by gravity.

With the delivery of a `cup blank from the magazine the disk 53 actuates the. eccentric bar 55 and the links 57 and 7 6. The connecting bar 77 and the bell crank 78 thus actuate the lower gripper' bar 79 to move the lower grip er .jaw 80 into open position. The eccentric gar also Serves-to advance the vcarriage 70 toward the magazine 46 so that the open grippingl jaws 72 and 80 are respectively positioned overand below the advance portion of the delivered cup blank.

With the next half revolution of the disk '53 the lower gripper jaw.804 is first moved with the next han?v revolution' of ,the disk 5s and the advanced blank is released as the "Figure 24 with the cup between Vthe Vtable section. 81 Zand the feedplate 69. The liange 75 on the carriage acts against'the edge of the advanced cup blank carriagev starts back for the next cup blank. The cup feeder plate 69 on the carriage 70 is thus moved over the advanced cup blank 90 into the osition shown in lank portion 110 and pushes -fthe cup blank back. against the edge 83 of the table plate 82. The cup blank is thus properly centered.

The cam '106(Figure 18) on the cam shaft 107 now acting on theroller 105 raises the slide bar 103 thereby operating the crank 101 causing the arm96 to swing upwardly in the'glue tank92. The glue applying pinv 9.7 is thus proje'ctedthrough the table aperture 91 an acts to applyV a dab of glue 108 to the under surface of the advanced cup blank. f

v 5 i; After the dab ofgluef108 has been applied :tothe cup blank the cam'115 (Figure 11) on the cam shaft 107 co-acts with the roller 113 in the cam slot 114 to raise the bracket 89 thereby causing the two arms 86 and 87 to be lifted from the full line position of Figure 23 upwardly to the dotted line position. The portion 109 of the cupblank is thus bent upwardly by the upper bar 86 into the position illustrated in Figure 25.

The carriage 70 again starts to lreturn after another blank delivered from the magazine 46 has been gripped by the gripper jaws 72and80. With the return of the carriage toward the discharge end of the machine the feed plate 69 acts to move against the upturned portion 109 of the cup blank-thereby forcing the cup blank to pass through the slot 88 between the raised 'arms 86 and l87. The'cup blank portion 109'is thus bent overagainst the cup blank portion `110 with the feed plate 69 still between vthe cup sections 109 and 110 creasing the lc'up blank along the inclined edge of the feed plate.

When the cup blank isA advanced from the vposition villustrated inl Figure 24 the roller 157 acting in the cam groove 158 (Figure 10) causes the bracket 124 to be lowered thereby bringing the glue applying disk 126 into cont-act with the upper surface of the marginal portion 212 of the cup blank. Glue from the tank 123 flows' through the aperture 125 onto the peripheral surface of the disk 126. The disk 126 is rotated by means of the meshing gears 128,

129 and 130 and bythe gears 133, 134, 137,

138, 142, 143 and 146 from the bevel gearV blank passesbeneath the rounded head 118 (Figure 7) on the creasing arm 119 and over the slot 117. Thev creaser head 118 thus acts to crease the vadvancing cup blank along the line 120 (Figure 25) to form the flap 121. With the continued advance of the cup blank by the. feed plate 69 the creased ap 121` passes over the inclined lsurface of the shoe- 122 and then over the inclined plate. 161, (Figure 4). The flap 121 is thus bent upwardly along the crease 120 as the feed plate advances the partially lbrmedcup over the table section 84.

As the Hap 121 is bent up the cam 162 on the camshaft 107 acting on the roller .163 actuates the bell crank 164 tovmove the carriage '16S-toward the table -84 into the arms 86' and 87, the advance end of the cup position illustrated in Figure 14. The flap folding plate 170 ,thus folds the flap 121 over against the cup section 109 thereby causingy the glued surface of said flap to adhere to the cup Section 109 (Figure 26). The partially formed cup is further advanced by the feed plate 69 into the position shown in Figure 27 wherein the tip portion 172 of the cup projects over the edge 173 of the table section 84.

The cam 173 (Figure 17) now comes into )lay and acting on the roller 174 swings the .ll crank 17 5 `downwardly against the action of the spring 179. The post 177 is thus pulled downwardly thereby causing the cup tip bending shoe 182 to move from the full line position of Figure 21 to the dotted line bending the cup tip 172 downwardly at right angles while the spring controlled pad 187 hasone corner thereotl engaging against the body of the cup. The body of the cup is thus clamped between the table 84 andthe pad 187 while `the tip 172 is being bent over (Figures 27 and At this stage in the operation the gripper carriage starts again to move toward the magazine 46 thereby causing the cup feed plate 69 to move out of the partially folded cup. Just about this time in the operation the cup feed cam 141 on the shaft 139 is rotated to engage the top surface of the flat cup and advance the same over the table rollers 188 between the cup feeding or advancing rolls 145 and 150. As the cup -is moved from the dotted line position shown in Figure 21 the bent over tip 172 is bent upwardly against the under side of the flat cup so that the dab of glue 108 will cause the ti to adhere to the body ofthe flat cup igure 29) to formthe completed flat phe cup feed rolls 145 and 150 which are rotated from the gear mechanicmswonnected with the cam shaft 107, now act to advance the completed lflat cup over onto the table extension 189 to drop by gravity into the pocket 197 of the cup removing bars 196. The bars 196 are advanced toward the rollers 145 and 150 by the carriage 192 which is slidable on the guide bar 191 by the action of the inner lever arm 63 and the link 211 which are connected by the connecting rod 62 to the end of the arm 61 on the eccentric bar 55 (Figure 3). When the carriage 192 starts to move outwardly toward the cup stacking end of the machine the bell crank 209 is first actuated to swing the short arm ot the bell crank 209 upwardly so that the block 210 (Figure 20) acts to raise the plate 194 thereby elevating the bars 196. These bars being positioned beneath the cup stacking magazine 201 act to raise the stack of formed cups already stacked within the stacking magazine. As the carriage 192 moves outwardly the raised bars 196 slide from under the raised stack of cups carrying a formed cup in the pocket 197 into the base. section 201 ot' the stacking magazine beneath the .etack lot' cups already ystacked therein. The stack of cups in the stacking 70 magazine drop into the pocket 197 upon the cup just delivered and the bars 196 are again lowered as the carriage 192 reaches the end of its outward movement on the bar 191.

The flat cups being formed follow 011e auf other in a constant streiam through the machine and are automatically delivered one at a time into the bottom of the stacking magazine and are elevated each time a new cup is added to the bottom ot' the stack. The flatfcups thus pile up in the stacking magazim` between the flexible guides "or Springs 205 ready to be lifted in any desired quantities from the top of the stacking magazme.

A cup carton may be engaged over the upwardly projecting ends ot' the spring guides 205 with the open end of the carton resting on the upper magazine section 204 so that a stack of latecup.,` may be pushed upwardly into the carton and the carton removed from the Spring guides.

If at any time during the operation of the machine cup blanks or partially formed cups should become clogged there will be a tendency for the shaft 9 (Figure 5) to slow upto that a relative movement will take place between the hand wheel 21 and the disc 18. lVhen this occurs the control pin 20 is forced away from the disk 18 e through vthe hand wheel hub and againstthe ring 25 on thelong arm 26 of the release bell crank 26-28 (Figure 16). The short arm 28 ot' the bell crank is thus swung m7 upwardly` so that the adjustable'screw 29 will act' against the short arm of the start. ing bell crank 30 to throw the same out ofactive position. The clutch collar 15 is thus moved outwardly to releaSe the clutch driven" and the machine is automatically stopped.

If at.- any time during the operating of the machine. it may be desired to quickly stop the machine the hand wheel 21 may be manually turned to cauce the control pin "7 20 to release the clutch drive. The machine of course. may be started and stopped by operating the control handle 32 onwthe shaft 31.

' I I am aware that numerous details of/l" 

